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两铰拱
meaning in English
double-hinged arch
two pinned arch
two-hinged arch
Related Words
铰轴
实铰
蝶铰
铰门
铰钉
建筑铰
铰边
半圆铰刀
镀锌铁暗铰
链轮铰车
两焦
两交正火
两脚
两脚并拢
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